Concrete mixing and distributing machine.



No. s00,252.

PATENTED SEPT. 26, 1905. v G. w. WELLER. CONCRETE MIXING AND DISTRIBUTING MACHINE.

APPLIUATION FILED D3016, 1904.

INVENTOR Alfome w.

No. 800,252. PATENTED SEPT. 26, 1905.

I G. w; WELLER.

GONORBTB MIXING AND DISTRIBUTING MACHINE. APPLIOATION FILED DBO. 6,1904.

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PAIENTED SEPT. 26.1905.

G. W. WELLER. CONCRETE MIXING AND DISTRIBUTING MACHINE.

APPLICATION FILED DEC, 6, 1904.

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5 I lflll l No. 860,252. 'PATENTEDSEPT. 26'; 1905.1

7 "G. w. WELLER. v

CONCRETE MIXING: AND DISTRIBUTING MACHINE.

urmcnrox FILED use. 6, 1904.

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UNITED. STATES PATENT OFFICE. I

GILES WALTON WELLER, OF BAKER CITY, OREGON, ASSIGNOR OF ONE' HALF TO J. W. BAYLOR, OF WALLA W ALLA, WASHINGTON.

CONCRETE MIXING AND Specification of Letters Patent.

DISTRIBUTING MACHINE.

PatentedSept, 26, 1905.

Application filed December 6, 1904. $erial No. 235,659.

This invention is an apparatus for unload-;

ing, mixing, and placing material used in the construction of concrete pavements. It in:

eludes means 'for self-propulsion, so that the machine can travel alongas fast as the pave gears 3, which mesh with pinions 4 on shaft ment is laid, also means for hoisting and delivering material from supply-wagons or the like to the hoppers leading to the mixingdrum. Means to perform the various opera-' tions are so arranged that they may be controlled from a suitable single operating-stand.

The machine is characterized by completeness and rapidity of operation.

In the accompanying drawings, Figures 1 and 1 show the machine in side elevation. Figs. 2 and 2 show it' in plan, part of the upper gear being removed. Figs. 3, 4, and

are respectively vertical sections on the lines 3 3, 4 4, and 5 5 of Fig. 1 and Fig. 1. Fig. 6 is a detail showing the reversing tractiongear. Fig. "7 is adetail in section at the base of the crane, showing the hoisting-drum and brake. Fig. 8 is a fragmentary plan view of the inside of the mixing-drum, showing the mixing-blades. Fig. 9 is an elevation of the dumping-box in which the gravel and sand are hoisted by'the crane and dumped into the hoppers. I

Any suitable engine or motormay be used to operate the machine, preferably a gas-engine, (not .shown,) located between the rear wheels of the machine in the space indicated at A. This engine is geared to the various operative parts, as hereinafter described, and may be utilized for traction and all other purposes connected with the preparation and distribution of the concrete.

The main frame of the machine has side sills or beams, (indicated at 1,) which are spread in front to admit the miXing-drum'97 Itherebetween.

2 represents the traction-wheels, having 5, provided with suitable reversing and differential gearing, the bevel-gears 6 of which mesh with a pinion 7 on the main drive-shaft 8, which has a wheel 9 geared to the engine.

' 10 and 11, Fig. 4, are levers in convenient reach of the operator on platform I, B, and

these levers operate rock-shafts 12 and 13,-

Figs. 2 and 4, which have rocker-arms 14 and 15, connected by links 16 and 17 to the arms 18 and 19, which operate the friction-clutches 20, to drive the friction-wheels. (See Fig. 6.) .The operator can thus move the machine backward or forward at will.

The front or guide wheels are indicated at 21, mounted on an axle 22, to which are connected the guide-chains 23 and 24, which wind on roller-shaft 25, under the control of the oporator through worm-gear26, worm 27, shaft 28, and hand-wheel 29. The boom of the crane is indicated at 30, swinging on a hollow standard 31. The hollow standard has thereon a worm-wheel 32, meshing with worm33, the shaft of which carries a pinion 34, engage.- able with pulley by means of a swinging arm 36, which is connected by a rod 37 to rocker-arms 38 on a rock-shaft 39, operated by a hand-lever 40. The pulley 35 is mounted on a shaft 41, which has thereon a gear-wheel 42, meshing with gear 43 on the main shaft 8. The pulley 35 is a reversing-pulley, ,Slidable on the shaft to rotate the worm and swing the crane either way. I

The dump-box (shown in Figs. 1 and 9) is swung by block 44 and rope .45 from the end of the boom of the crane, and the rope passes over the pulleys and down through the hollow mast to the winding-drum 46, which turns on shaft 47 journaled on the frame 1. Said shaft carries a gear 48, meshing with gear 49,,actuated by a friction-clutch 50 on the shaft 41, Which,'as said before, is geared tothe main drive-shaft 8. The friction-clutch 50 is operated by a lever 51, connected by link 52 to arm 53 on the rock-shaft 54,'controlled by the hand-lever 55 adjacent to the platform.

56 indicates a brake-wheel on the drum and has a brake 57, carried by a lever 58, which is connected bya rod 59 to arm 60, carried by a rock-shaft 61, the arm 62 of which is connected by rod 63 to an arm 64 on the rock- The operator may thus control the lift and dro'ppf the box and the swing of the crane.

At 67 is indicated a gravel-hopper and at 68 a sand hopper, properly supported on the frame of the machine.

69 is the cement-hopper. The gravel and sand are fed from their hoppersinto themixing-drum 97 by means of a reciprocating feedbox 70, which is divided into two compartments, one for sand and one for gravel, as shown in Fig. 3. and forth by connecting-rod 71, connected to one arm 72 of a bell-crank lever, which is fulcrumed at 73, and the other arm 74 of which is connected by a pitman 75 to a crank 76 on a shaft 77. This shaft has sprocket-wheel 78, connected by a chain with sprocket-wheel 79 on shaft 80, the latter sprocket-wheel being controlled by afriction-clutch 100. The shaft 80 has thereon asprocket-wheel 81, connected by a chain to sprocket-wheel 82 on shaft 4E1, heretofore referred to, from which the parts are driven. By means of the gearing described the feeding-box is moved back and forth lengthwise, feeding the sand and gravel into the end of the mixing-drum. The plate 83 makes a bottom for the feeder-box 70, and this plate extends into the end of the mixingdrum. When the feeder-box is driven forward beyond the end of the said plate, it will discharge its load into the mixingdrum. Said feeder-box is supported and carried on rollers 8 1. (See Fig. 3.)

The cement-hopper is shown at 69, having thereunder its feeder-box 85. Thisbox reciprocates laterally. lts bottom 86, on which it slides, has an inclined lip projecting into the mixing-drum. The box is connected by a rod 87 with the arm 88 of an angle-lever fulcrumed at 89, the other arm 90 of which is connected by a rod 91 to crank 92 on shaft 93, which has thereon a gear-wheel 9 1, meshing with gear 95 on shaft 77, heretofore referred to. The box 85 slides on rails or supports 96, and as it is driven forward over the inclined end of the bottom 86 the cement flows out and down into the mixing-drum. The

.movement of the feeder-boxes 70 and 85 is controlled by lever 101, (see Fig. 1,) which controls the clutch 100.

The mixing-drum 97 is of greater diameter at the discharge end, so that the concrete will work toward that end as the drum is rotated. It has on the inside mixing-plates 98 and 99, (see Fig. 8,) of which the former have a pitch toward the discharge, end to throw the concrete that way. The drum has on the outside wheels or rings 102, which run on and are driven by friction-wheels 103, mounted on shafts 104, one of which has thereon a gearwheel 105, meshing with wheel 106 on shaft 41 and controlled by friction-clutch 107, which is I operated by a lever 108, connected by rod 109 to lever 110 adjacent the platform. By manipulation of said lever the operator can start or stop the mixing-drum, as desired.

This box is moved back The concrete delivered from the drum is distributed by a belt 111, carried by rollerson beams 115, which are supported at the outer ends by the rope belts 112, which drive the distributing-belt. The belt and its supporting-beams are supported and carried at the inner ends upon a pivoted (at 113") yoke 113, so that it can be swung from one side to the other by turning the head 127. The driveropes 112 extend over pulleys 114 at the end of the beams 115 and over pulleys 116 on shaft 117, which is carried by the head 127. Said shaft has thereon a bevel-gear 1 18, meshing with bevel-gear 119 on vertical shaft 120, having thereon bevel-gear 121, which meshes with bevel-gear 122 on shaft 123, which has thereon sprocket-wheel 124, connected by a chain with sprocket-wheel 125. This wheel 125 is operated by a friction-clutch 126 on shaft 80, the friction-clutch being controlled ,by lever 126 with connecting rods and arms. The movement of the distributing-belt is thus under the control of the operator at the platform. The head 127 turns in a box 128, supported on the frame of the machine, and this head has thereon a worm-gear 12$), meshing with a worm 130, the shaft 131 of which has a bevel-gear 132, meshing with bevel-gear 133 on a shaft 131, having thereon reversing-pulleys 135, operated by a lever 136, through suitable connecting rods and arms. Either of the wheels 135 may be made to engage the pinion 137 on shaft 80 to swing the distributing-belt and the beams carrying the same to right or left, as desired.

It is intended that the box (shown in Fig. 9) shall be loaded with gravel or sand at a distance and hauled to the machine. It is then hoisted by the crane and swung over the hopper, where it may be dumped by the operator by tripping the lever 139, allowing the bottom doors to open.

At is indicated a water-supp] y pipe connected to some suitable source and leading into the mixing-drum, and this pipe has a valve 146 to regulate the amount of water delivered.

The general operation is as follows: The machine beingadvaneed to the proper position, the drum and feeding devices are started by the operator, and the various materials are mixed to form concrete which flows out the end of the drum onto the belt .1 11, by which it is distributed to any desired place within the reach of the machine. As the pavement is laid the machine is backed off accordingly.

The particular operation of the various parts will be evident from the above description.

hat I claim as new, and desire to secure by Letters Patent, is-

1. The combination, in a concrete-mixer, of a rotary mixing-drum, hoppers adjacent the receiving end of the drum, reciprocating feeding-boxes under the hoppers, one of which Works laterally and has a bottom with an inclined lip extending into the drum, and 0thers of which Worklongitudinally into the end -of the drum.

and bottom and slide back and forth upon said plates, and means to operate said feedboxes.

In testimony whereof I have signed my name to this specification in the presence of two sub- 7 scribing Witnesses. I GILES WALTON WELLER.

Witnesses:

W. W. WEBBE WALTER FERNALD. 

